Pin lifting implement



June 20, 1939. L. F. SCHIPPER PIN LIFTING IMPLQMENT 2 Sheets-Sheet 1 Filed March 22, 1938 Inventor ly/e Er/ ASV 5495 0491" M. Attorneys and June 20, 1939. v 1 $H|PPER 2,163,105

PIN LIFTING IMPLEMENT Filed March 22, 1938 2 Sheets-Sheet 2 (III l l I I Q x I I I I v 1 I I R. l I, l m

m l Inventor J lk/e' f rn ff \Q /Q /F" A florneys Patented June 20, 1939 PATENT OFFIQE PIN LIFTING IMPLEMENT Lyle Forrest Schipper, Edgcmont, S. Dak., as-

signor to Guy H. Stickney, Edgemont, S. Dak.

Application March 22, 1938, Serial No. 197,455

2 Claims.

My invention relates to improvements in pin lifting implements for use in removing the center pins from the truck bolsters of railway cars.

According to the usual practice, when it is desired to detach a truck from the body of a railway car, or vice versa, the body of the car is jacked up sufliciently to permit the usual center pin to be lifted out of the bolster, and the removal of the center pin is accomplished by hand. It

frequently happens that an operative engaged in this operation is badly injured as for instance by slipping of the car body off the jack.

Having the foregoing in mind, it is the principal object of my invention to provide a simply constructed, easily manipulated implement for lifting the center pins out of the truck bolsters and which may be operated from one side of the car, or in other words, at a point remote from the zone of danger.

To the accomplishment of the above, and subordinate objects presently appearing, a preferred embodiment of my invention has been illustrated in the accompanying drawings, set forth in detail in the following description, and defined in the claims appended hereto.

In said drawings:

Figure 1 is a fragmentary View in side elevation illustrating my improved implement applied to the center pin of a car truck,

Figure 2 is a view in top plan of the implement,

drawn to an enlarged scale,

Figure 3 is a view in side elevation, and

Figure 4 is ,a view in transverse section taken on the line 4-4 of Figure 2 looking in the direction indicated by the arrows.

Referring to the drawings by numeral, the implement of my invention comprises, as its basic element, a main frame I of bar like metal, of any suitable character, including an elongated shank 2 having a front end yoke 3 of hook-shape extending forwardly therefrom and to one side thereof in the plane of said shank, and a right angled bearing arm 4 at its opposite rear end extending to the same side of said shank as the yoke 3 and in the same plane. The yoke 3 and arm 4 function as bearings for the opposite ends of a crank shaft 5 rotatably mounted therein parallel with the shank 2 with one end extending through the sides of the yoke 3 and the other end extending beyond said arm 4 and squared as at 6 for a purpose presently seen. Fast on the shaft 5, and disposed between the sides of the yoke 3, is a concave roller I preferably milled for a purpose presently apparent. A hand-grip 8 is fixed to the top of 5 the shank 2 adjacent the rear end of said shank.

A ratchet wheel 9 is fast on the shaft 5 along side the yoke 3. A holding pawl I0 pivoted, as at I I, on the yoke 3 coacts with the ratchet wheel 9 to dog rotation of the shaft in one direction, A i. e., as viewed in Figures 2 and 4, counterclockwise.

Pivotally mounted on the outer end of the yoke 3, as at I2, for swinging movement along side the shank 2 toward and from the same is a short lever l3 having a front end yoke I4, similar 10 to yoke 3, disposed in the plane of the latter with its open side opposite the open side of the same.

A second roller I5, similar to roller I, is rotatably mounted in the yoke I4 by meansof a shaft IE to be swung by said lever I3 toward and from 15 the roller I. The rear end of the lever I3 is adapted to be yieldingly connected to the shank 2 by means of a bolt I3 extending from the shank and through a slot I! in said lever, and a wing nut l8 threaded onto the bolt with a tension 20 spring I9 interposed between the same and said lever.

Referring now to the use of the described implement, when it is desired to remove a center pin 20 from the truck bolster 2|, the lever I3 is 25- disconnected from the shank 2 by removing the wing nut I8 and spring l9. The lever I3 is then swung outwardly of the shank 2 and the implement manipulated by the hand-grip 8 to locate the wheels I and I5 upon opposite sides of said 34 pin 20. The lever I3 is then swung toward the shank 2 and connected to the latter by means of the described bolt l3, wing nut I8, and spring I9 to yieldingly clamp the pin 20 between said rollers I and I5. Upon rotation of the shaft 5, 35 and hence the wheel I, in the proper direction,

i. e., clockwise as viewed in Figure 4, the pin 20 will be lifted out of the truck bolster 2| in a manner which it is believed will be readily understood. 0

A suitable hand crank 22 is provided for application to the squared end 6 of the shaft 5 to rotate the same. The shaft 5 and wheel 1 may be rotated step by step, as desired, the pawl I0 dogging said shaft and wheel against rotation in the opposite direction.

The foregoing will, it is believed, suffice to im-' part a clear understanding of the invention without further explanation.

Manifestly the invention, as described, is susceptible of modification without departing from the inventive concept and right is herein reserved to such modifications as fall within the scope of the subjoined claims.

What I claim is:

1. In an implement of the class described, a main frame of bar-like metal including an elongated shank having a front end yoke ofhook form extending forwardly therefrom and to one side thereof, a bearing arm extending from the opposite end of the shank to the same side as the yoke and in the plane of the latter, a shaft having its opposite ends journalled in said yoke and arm, respectively, and extending at one end through the yoke and at the other end beyond said arm, a concave wheel fast on said shaft within said yoke, a lever pivoted on said yoke for swinging movement along side the shank toward and from the same and having a front end yoke similar to the first mentioned yoke disposed with its open side opposite the open side of the latter, a second concave Wheel rotatably mounted in the second mentioned yoke to be swung by said lever toward and from the first mentioned wheel, a crank on said other end of said shaft, and means to detachably and yieldingly connect said lever to said shank.

2. In an implement of the class described, a main frame of bar-like metal including an elongated shank having a front end yoke of hook form extending forwardly therefrom and to one side thereof, a bearing arm extending from the opposite end of the shank to the same side as the yoke and in the plane of the latter, a shaft having its opposite ends journalled in said yoke and arm, respectively, and extending at one end through the yoke and at the other end beyond. said arm, a concave wheel fast on said shaft within said yoke, a lever pivoted on said yoke for swinging movement along side the shank toward and from the same and having a front end yoke similar to the first mentioned yoke disposed with its open side opposite the open side of the latter, a second concave wheel rotatably mounted in the second mentioned yoke to be swung by said lever toward and from the first mentioned wheel, a crank on said other end of said shaft, and means to detachably and yieldingly connect said lever to said shank, comprising a bolt extending from said shank through said lever, a wing nut on said bolt, and a tension spring interposed between said lever and nut.

' LYLE FORREST SCHIPPER. 

